1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_SH_BITOPS_GRB_H 3#define __ASM_SH_BITOPS_GRB_H 4 5static inline void set_bit(int nr, volatile void * addr) 6{ 7 int mask; 8 volatile unsigned int *a = addr; 9 unsigned long tmp; 10 11 a += nr >> 5; 12 mask = 1 << (nr & 0x1f); 13 14 __asm__ __volatile__ ( 15 " .align 2 \n\t" 16 " mova 1f, r0 \n\t" /* r0 = end point */ 17 " mov r15, r1 \n\t" /* r1 = saved sp */ 18 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 19 " mov.l @%1, %0 \n\t" /* load old value */ 20 " or %2, %0 \n\t" /* or */ 21 " mov.l %0, @%1 \n\t" /* store new value */ 22 "1: mov r1, r15 \n\t" /* LOGOUT */ 23 : "=&r" (tmp), 24 "+r" (a) 25 : "r" (mask) 26 : "memory" , "r0", "r1"); 27} 28 29static inline void clear_bit(int nr, volatile void * addr) 30{ 31 int mask; 32 volatile unsigned int *a = addr; 33 unsigned long tmp; 34 35 a += nr >> 5; 36 mask = ~(1 << (nr & 0x1f)); 37 __asm__ __volatile__ ( 38 " .align 2 \n\t" 39 " mova 1f, r0 \n\t" /* r0 = end point */ 40 " mov r15, r1 \n\t" /* r1 = saved sp */ 41 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 42 " mov.l @%1, %0 \n\t" /* load old value */ 43 " and %2, %0 \n\t" /* and */ 44 " mov.l %0, @%1 \n\t" /* store new value */ 45 "1: mov r1, r15 \n\t" /* LOGOUT */ 46 : "=&r" (tmp), 47 "+r" (a) 48 : "r" (mask) 49 : "memory" , "r0", "r1"); 50} 51 52static inline void change_bit(int nr, volatile void * addr) 53{ 54 int mask; 55 volatile unsigned int *a = addr; 56 unsigned long tmp; 57 58 a += nr >> 5; 59 mask = 1 << (nr & 0x1f); 60 __asm__ __volatile__ ( 61 " .align 2 \n\t" 62 " mova 1f, r0 \n\t" /* r0 = end point */ 63 " mov r15, r1 \n\t" /* r1 = saved sp */ 64 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 65 " mov.l @%1, %0 \n\t" /* load old value */ 66 " xor %2, %0 \n\t" /* xor */ 67 " mov.l %0, @%1 \n\t" /* store new value */ 68 "1: mov r1, r15 \n\t" /* LOGOUT */ 69 : "=&r" (tmp), 70 "+r" (a) 71 : "r" (mask) 72 : "memory" , "r0", "r1"); 73} 74 75static inline int test_and_set_bit(int nr, volatile void * addr) 76{ 77 int mask, retval; 78 volatile unsigned int *a = addr; 79 unsigned long tmp; 80 81 a += nr >> 5; 82 mask = 1 << (nr & 0x1f); 83 84 __asm__ __volatile__ ( 85 " .align 2 \n\t" 86 " mova 1f, r0 \n\t" /* r0 = end point */ 87 " mov r15, r1 \n\t" /* r1 = saved sp */ 88 " mov #-14, r15 \n\t" /* LOGIN: r15 = size */ 89 " mov.l @%2, %0 \n\t" /* load old value */ 90 " mov %0, %1 \n\t" 91 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 92 " mov #-1, %1 \n\t" /* retvat = -1 */ 93 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 94 " or %3, %0 \n\t" 95 " mov.l %0, @%2 \n\t" /* store new value */ 96 "1: mov r1, r15 \n\t" /* LOGOUT */ 97 : "=&r" (tmp), 98 "=&r" (retval), 99 "+r" (a) 100 : "r" (mask) 101 : "memory" , "r0", "r1" ,"t"); 102 103 return retval; 104} 105 106static inline int test_and_clear_bit(int nr, volatile void * addr) 107{ 108 int mask, retval,not_mask; 109 volatile unsigned int *a = addr; 110 unsigned long tmp; 111 112 a += nr >> 5; 113 mask = 1 << (nr & 0x1f); 114 115 not_mask = ~mask; 116 117 __asm__ __volatile__ ( 118 " .align 2 \n\t" 119 " mova 1f, r0 \n\t" /* r0 = end point */ 120 " mov r15, r1 \n\t" /* r1 = saved sp */ 121 " mov #-14, r15 \n\t" /* LOGIN */ 122 " mov.l @%2, %0 \n\t" /* load old value */ 123 " mov %0, %1 \n\t" /* %1 = *a */ 124 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 125 " mov #-1, %1 \n\t" /* retvat = -1 */ 126 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 127 " and %4, %0 \n\t" 128 " mov.l %0, @%2 \n\t" /* store new value */ 129 "1: mov r1, r15 \n\t" /* LOGOUT */ 130 : "=&r" (tmp), 131 "=&r" (retval), 132 "+r" (a) 133 : "r" (mask), 134 "r" (not_mask) 135 : "memory" , "r0", "r1", "t"); 136 137 return retval; 138} 139 140static inline int test_and_change_bit(int nr, volatile void * addr) 141{ 142 int mask, retval; 143 volatile unsigned int *a = addr; 144 unsigned long tmp; 145 146 a += nr >> 5; 147 mask = 1 << (nr & 0x1f); 148 149 __asm__ __volatile__ ( 150 " .align 2 \n\t" 151 " mova 1f, r0 \n\t" /* r0 = end point */ 152 " mov r15, r1 \n\t" /* r1 = saved sp */ 153 " mov #-14, r15 \n\t" /* LOGIN */ 154 " mov.l @%2, %0 \n\t" /* load old value */ 155 " mov %0, %1 \n\t" /* %1 = *a */ 156 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 157 " mov #-1, %1 \n\t" /* retvat = -1 */ 158 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 159 " xor %3, %0 \n\t" 160 " mov.l %0, @%2 \n\t" /* store new value */ 161 "1: mov r1, r15 \n\t" /* LOGOUT */ 162 : "=&r" (tmp), 163 "=&r" (retval), 164 "+r" (a) 165 : "r" (mask) 166 : "memory" , "r0", "r1", "t"); 167 168 return retval; 169} 170 171#include <asm-generic/bitops/non-atomic.h> 172 173#endif /* __ASM_SH_BITOPS_GRB_H */ 174